import pygame
from pygame.sprite import Group

from alien import Alien
from settings import Settings
from ship import Ship
import game_functions as gf
from game_stats import GameStats
from button import Button
from scoreboard import Scoreboard
def run_game():
    # 初始化游戏并创建一个屏幕对象
    pygame.init()
    ai_settings = Settings()
    #创建显示窗口，指定尺寸
    screen = pygame.display.set_mode(
        (ai_settings.screen_width, ai_settings.screen_height))
    pygame.display.set_caption("Alien Invasion")#设置窗口标题
    play_button = Button(ai_settings,screen,"Play")
    ship = Ship(ai_settings,screen)#创建飞船
    bullets = Group()
    alien = Alien(ai_settings,screen)
    aliens = Group()
    stats = GameStats(ai_settings)
    sb = Scoreboard(ai_settings,screen,stats)
    #创建外星人群
    gf.create_fleet(ai_settings,screen,ship,aliens)
    # 开始游戏的主循环
    while True:
        # 监视键盘和鼠标事件
        #gf.check_events(ship)
        gf.check_events(ai_settings,screen,stats,sb,play_button,ship,aliens,bullets)
        if stats.game_active:
           ship.update()
           gf.update_bullets(ai_settings,screen,stats,sb,ship,aliens,bullets)
           gf.update_aliens(ai_settings,stats,screen,sb,ship,aliens,bullets)
        #print(len(bullets))
       # gf.update_screen(ai_settings,screen,ship)
        gf.update_screen(ai_settings,screen,stats,sb,ship,aliens,bullets,play_button)
run_game()